I’ve listened to what I thought were great sound from Bose sound systems as OEM in BMW’s and Porsche’s. Certainly the Bose upgrade in the 350z is a disappointment.

Is the Bose system in the G35 the same as in the 350z?

--Spike

 

I have no idea. I would guess so. People on the G35 boards complain about it quite a bit.

 

Then it's probably the same. Too bad.

--Spike

 

I must respectfully disagree with this statement...

I've built, judge and listened to some great sounding cars with dash/a-pillar mounted tweeters... One consideration that you want to consider if using tweeters in the A-Pillars is the dispersion pattern for obvious reasons - reflections...

The primary problem with car audio in general, is the acoustically hostile world that is car audio. Unfortunetly there is no set, quick and easy solution to create a transparent, coherent, and fluid sound reproduction in a car. With that said, if you follow these three steps, in exactly this order you can achieve a great sounding car.

1. Placement
2. X-Over Points
3. Tuning

As for wavelengths at different frequencies, please take note of the below - positioning of the mid-range/tweeter drivers are more critical than whether they're mounted in the kick, dash or a-pillar... the slightest angle degree change will have a huge impact on soundstage and placement...

100hz = 11.28 ft

400hz = 2.82 feet

800hz = 1.41 ft

1600hz = .705 ft

3200hz = .35 ft

6400hz = .175ft

 

What are these B and C pillars you speak of? My Z only came with an A pillar.

 

For every 1 you've heard that sounds good I've heard 10 that sounded terrible.

 

- just because you've had bad experiences doesn't mean that tweeters in the pillars don't work... and I also doubt that statement very much, I'm no newbee to the competition car audio scene

 

Finally, someone who knows what they are talking about provides some useful facts on this thread. Thank you for taking the time and providing accurate information.

Kevin seems to think the components need to be in the same position to achieve good sound. Of course that works and it’s the easy way to do sound, but is not always practical in a car environment. There are situations where it is better to mount the components some distance from one another. The challenge here is getting the sound to stage properly. The premises you describe are exactly how I did this, and the sound is just great.

Very good and accurate post,

--Spike

 

We're not talking competition scene here, we're talking about 'my buddy knows how to install radios' scene. Working in three different shops for ~5 years I got to see lots of stuff.

Every other car from the 'hood' came in with lots of 6x9s in the rear deck and tweeters mounted on any flat surface they could find.

Like I said in my first post, with the right amount of processing you can make them sound great - competition sound even. But, simply mounting a tweeter in an a-pillar and point it towards the driver isn't going to yield good results.

 

Facts? I posted several links to reputable sites that back up everything I said. Fact - There are better places to mount tweeters then the A-pillar.

 

Sorry Kevin… Your postings on this thread certainly show a lack of knowledge and brands you as an “advanced amateur.” You shouldn’t worry much about that label. In fact that is what I consider myself. It’s obvious you don’t understand the subtle points that Professional Installers consider very basic premises. In fact, the links you posted are meant for amateurs.

Philthy is obviously an expert. His advice is exactly what my Professional Installer recommended for my installation.

Be cool… You’re not in Philthy’s league (nor am I). Chill.

--Spike

 

So I provide factual information that I back up with reputable sources yet I show a lack of knowledge? My comments were intended for an amatuer installer (that is why I used the word 'generally'). This is NOT a forum for professional installers. My comment was intended to simply inform the OP that simply mounting the tweeters in the A-pillar would most likely not yield the results he was looking for (after all, it can be assumed that anyone looking to add tweeters would want them to sound as good as possible. Building on that, if they want good sound there are BETTER places to mount them then the A-pillar).

I challange you, show me ONE top SQ competition car that has tweeters mounted in the A-pillar and has no time delay processing.

 

^^ Now you are looking desperate and maybe even foolish. It’s time to cut your losses and save at least a little “face.”

--Spike

 

Desperate? I made a statement, backed it up with facts from multiple credible sources. I have no reason for desperation.

Then, I ask you to provide some facts behind what you are saying and you resort to name calling. Who is the desperate one here?

 

^^ You seem very determined to make a point… Now we sound like a couple of high school girls fighting over nothing. I’m sure the readers here would prefer it ends since it is going nowhere.

--Spike

 

To say that one speaker location is superior over another is being short sighted.... Every car is different and all components have different attributes... You mention wining comp cars? Do a bit more reseach and you'll find many of the best sounding cars in the world have dash/a-pillar mounted tweeters....

There's really nothing to debate here... If you're set on going the kick panel or dash route the most important choice is what drivers will work best in the respective location...

Just follow this three step process in this order and you'll be fine...

1. Placement
2. X-over points
3. Tuning

 

What parameters are we tuning in step 3?

 

That all depends on how much controll you have over the system...

 

Say standard stock radio, an amp, and compoents up front.

 

I was waiting for Philthy to respond, but I suspect he’s just shaking his head and isn’t willing to answer such a foolish question.

You’re asking about his third parameter (Tuning)… and then you say…
Jeez… does the “standard stock radio” even support this?

Not.

--Spike